Fix building EVN & -S Cloudsmith packages

Fix building EVN & -S Cloudsmith packages

Setting "artifacts: false" for the dependency on the "publish-private"
job prevents the url-*.txt files produced by that job from being pulled
from GitLab when the jobs that build EVN & -S Cloudsmith packages are
run, effectively breaking the latter.  Fix by making these jobs depend
on the artifacts of the "publish-private" job.